Gramme machine
= Gramme machine
{wiki=Gramme_machine}
The Gramme machine, invented by Belgian engineer Zénobe Gramme in the 1860s, is a type of electrical generator that operates on the principle of electromagnetic induction. It is specifically a direct current (DC) machine, meaning that it generates direct current electricity. The Gramme machine consists of a rotating coil of wire (armature) placed in a magnetic field.